BOT 552: PLANT DISEASE MANAGEMENT
BOT 552: PLANT DISEASE MANAGEMENT
BOT 552: PLANT DISEASE MANAGEMENT
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The percentage of disease and the scale for distancevary with the type of pathogen or its method ofdispersal, being small for soilborne pathogens orvectors and larger for airborne pathogens.Disease gradients can also be caused byenvironmental gradients such as, variations in soiltype, fertility, or gradual changes in microclimate.